交大开元太阳能

Endothermic vacuum tube - microcirculation - water tank insulation - system control.Vacuum tube solar water heaters use of vacuum tube collector to achieve maximum solar thermal conversion,by the microcirculation hot water was sent to the insulation tank,through a dedicated Pipeline to customers. System controller control valves,device,  to achieve the automatic control. Electric heater device was placed in water tanks, have been prepared for overcast, rain, snow.

Performance characteristics and technical parameters:

1. Collector components - vacuum tubes technical specifications: 1200mm × 47mm,1500 mm × 47mm. At present,the best of the collector is AL---N/AL vacuum by sputtering selective coating.The coated glass vacuum tube has the absorption rate of ≥ 0.93 infrared emissivity ε ≤ 0.6, the average heat loss Uct0.9W / ㎡ ℃ vacuum P ≤ 5 × 10 ˉ 3pa use of performance equivalent to the U.S. high-borosilicate glass 3.3 special hardware manufacturers.

2. Insulation material and technical parameters: thermal insulation materials will have a direct relationship to the thermal efficiency of the application in early morning and evening,which is of particular importance in the cold north-east.At present, better insulation material is imported polyurethane insulation.If ingredients, technology, environment, temperature does not fit together, the foam may also result in uneven or excessive cell, which will lead to the slow heat loss. which requires There are special foam factory machinery,standardization and higher levels of technology.

In addition, we must not only understand the technology of timber products,mechanical equipment and quality monitoring standards. The quality of products directly related to the interests of consumers.

Polyurethane insulation thickness: 70mm

obturator rate: 65.69%

thermal conductivity: 19.83mw/mk

and after dealing with high-temperature aging.

3. water tank and bracket

Water tank is important for water storage.Their material strength and corrosion resistance is crucial, high-quality material should be imported SUS304 plate,the thickness of the stainless steel plate is between 0.6mm - 0.8mm.Protection by argon,high-frequency automatic welding,to improve corrosion resistance of steel sheet in a variety of water or environmental, which is a more advanced welding technology.

All materials used stainless steel bracket (SUS304), look beautiful, high-intensity, the overall use of connecting bolts, frame, rigid machine.It also conducive to the installation of transportation.  Pressure-tube solar hot water heaters working principle: The vacuum tube absorbs heat - heat pipe thermal conductivity - water tank insulation - control system - the user. (Higher prices)

Pressure-tube solar hot water heaters, the use of solar vacuum tubes, built-in ¤ fin-to high-temperature heat to the environment of the heat pipe, heat pipe heat quickly into water tanks, especially in cloudy, low-intensity radiation, to start Rapid heat transfer. After tests in a row, the heat pipe solar water heater, the average thermal efficiency as high as 56%.

Heat transfer components - heat pipe technical parameters specifications: φ8 × 1520

⑴. Domestic manufacturers a lot of heat pipe, we are all tested heat pipe, according to GB/T14812-1993, GB/14813---1993 of the heat pipe heat pipe performance and life detection experiment, most of the organic heat pipe in a year or two after the heat transfer efficiency decreased. The final selection of inorganic elements heat pipe (the United States-MACBLE's patented technology) through the United States Stanford Institute (SRI) long-term system testing, to demonstrate that their excellent heat transfer performance. No heat transfer working fluid phase transition, the campaign by heat, fast heat transfer, heat transfer efficiency.

⑵. High pressure

Heat pipe solar water heaters, water tanks, using 2MM thick steel plate, the arc head , CO 2 automatic welding, ability to pressure 0.6MPa, sealing up the pressure 1.2Mpa. Selection of the International Nickel advanced chemical technologies, the surface spraying reach to  the international advanced level. Collector can withstand water pressure (the pressure test up to 1.2MPa). The size with TB311-74 requirements.

⑶. Antifreeze, the carrying capacity of strong

Heat pipe solar water heaters using heat pipe heat transfer technology, solar water pipe, cold temperatures will not freeze and break the low collector tube. And as no water in the tube, if a damaged heat pipe will not affect the work of the equipment, so lead to the wider use of the water heater.